High
Security advisory
An issue was discovered in GitLab Enterprise Edition before 11.1.7, 11.2.x before 11.2.4, and 11.3.x before 11.3.1. Attackers could obtain sensitive information about group names, avatars, LDAP settings, and descriptions via an insecure direct object reference to the "merge request approvals" feature.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-17455
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:28 UTC · Revision 1
Source evidence
An issue was discovered in GitLab Enterprise Edition before 11.1.7, 11.2.x before 11.2.4, and 11.3.x before 11.3.1. Attackers could obtain sensitive information about group names, avatars, LDAP settings, and descriptions via an insecure direct object reference to the "merge request approvals" feature.
osv:CVE-2018-17455
Complete source record
{
"id": "7c218481d377e3171a190e26f182be335b0a92d10cb18c6a747072e4a0f7e567",
"url": "https://osv.dev/vulnerability/CVE-2018-17455",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-17455",
"summary": "An issue was discovered in GitLab Enterprise Edition before 11.1.7, 11.2.x before 11.2.4, and 11.3.x before 11.3.1. Attackers could obtain sensitive information about group names, avatars, LDAP settings, and descriptions via an insecure direct object reference to the \"merge request approvals\" feature.",
"evidence": "osv:CVE-2018-17455",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2018-17455",
"aliases": [
"CVE-2018-17455"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://gitlab.com/gitlab-org/gitlab",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "e7edd157fede812f5cc41cb3fae27370f2e4b5e4"
},
{
"introduced": "44dbeccbe1039cb1d42d8502655ffb0bce3ae803"
},
{
"fixed": "b5c7a88f7aab21a4f571916eab846340b52ad2f7"
},
{
"introduced": "1bbe39452664021af90851aef8527ce5e850343e"
},
{
"last_affected": "1bbe39452664021af90851aef8527ce5e850343e"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "11.1.7"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "11.1.7"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
"range": [
{
"introduced": "11.2.0"
},
{
"fixed": "11.2.4"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "11.2.0"
},
{
"fixed": "11.2.4"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:11.3.0:*:*:*:community:*:*:*",
"range": [
{
"introduced": "11.3.0"
},
{
"last_affected": "11.3.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:11.3.0:*:*:*:enterprise:*:*:*",
"range": [
{
"introduced": "11.3.0"
},
{
"last_affected": "11.3.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"11.3.0",
"v11.1.6-ee",
"v11.2.3-ee",
"v11.2.2-ee",
"v11.1.5-ee",
"v11.1.4-ee",
"v11.2.1-ee",
"v11.2.0-ee",
"v11.3.0.pre",
"v11.2.0-rc10-ee",
"v11.2.0-rc9-ee",
"v11.2.0-rc8-ee",
"v11.2.0-rc7-ee",
"v11.2.0-rc6-ee",
"v11.2.0-rc5-ee",
"v11.2.0-rc4-ee",
"v11.2.0-rc3-ee",
"v11.2.0-rc2-ee",
"v11.2.0-rc1-ee",
"v11.1.3-ee",
"v11.1.2-ee",
"v11.1.1-ee",
"v11.1.0-ee",
"v11.1.0-rc14-ee",
"v11.1.0-rc13-ee",
"v11.1.0-rc12-ee",
"v11.1.0-rc11-ee",
"v11.1.0-rc10-ee",
"v11.1.0-rc9-ee",
"v11.1.0-rc8-ee",
"v11.1.0-rc7-ee",
"v11.1.0-rc6-ee",
"v11.1.0-rc5-ee",
"v11.1.0-rc4-ee",
"v11.1.0-rc3-ee",
"v11.1.0-rc2-ee",
"v11.1.0-rc1-ee",
"v7.3.0-ee",
"v7.3.0.rc1-ee",
"v7.2.0.rc5-ee",
"v7.2.0.rc4-ee",
"v7.2.0.rc3-ee",
"v7.2.0.rc2-ee",
"v7.2.0.rc1-ee",
"v7.1.0-ee",
"v7.1.0.rc1-ee",
"v7.0.0-ee",
"v6.8.0-ee",
"v6.7.0-ee",
"v6.7.0.rc1-ee",
"v6.6.0-ee",
"v6.5.0-ee",
"v6.4.0-ee",
"v6.3.1-ee",
"v6.3.0-ee",
"v6.1.0-ee",
"v6.0.0-ee",
"v6.0.0-ee.rc1",
"v6.0.0-ee.beta",
"v5.2.0",
"v5.1.0",
"v5.0.0",
"v4.0.0",
"v4.0.0rc2",
"v4.0.0rc1",
"v3.1.0",
"v3.0.3",
"v3.0.2",
"v3.0.1",
"v3.0.0",
"v2.9.1",
"v2.9.0",
"v2.8.2",
"v2.8.1",
"v2.8.0",
"v2.8.0pre",
"v2.7.0",
"v2.7.0pre",
"v2.6.3",
"v2.6.2",
"v2.6.1",
"v2.6.0",
"v2.6.0pre",
"v2.5.0",
"v2.4.1",
"v2.4.0",
"v2.4.0pre",
"v2.3.1",
"v2.3.0",
"v2.3.0pre",
"v1.2.2",
"v1.2.1",
"v1.2.0",
"v1.2.0pre"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-17455.json"
}
}
],
"modified": "2026-10-30T10:30:22.002327274Z",
"provider": "osv",
"references": [
"https://about.gitlab.com/blog/categories/releases/",
"https://about.gitlab.com/releases/2018/10/01/security-release-gitlab-11-dot-3-dot-1-released/"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2018-17455",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 429831,
"published_at": "2023-04-15T23:15:13.637+00:00"
}